I am trying not to allow users to go to previous page using browser back button after logout. I wish to show users a messge like "Please login to continue".in Angular 2
create a new file called authorization.guard.ts and add this
import { Injectable } from '@angular/core';
import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs/Observable';
import {AppContextService} from './context';
@Injectable()
export class AuthorizationGuard implements CanActivate {
constructor(
private appContextService:AppContextService
){}
canActivate(
next: ActivatedRouteSnapshot,
state: RouterStateSnapshot): boolean {
return this.appContextService.getAuthAdminLoggednIn();
}
}
later in your main module import {AuthorizationGuard}
add this in your each router path
{
path: 'dashboard',
canActivate:[AuthorizationGuard]
},
Refer this files for complete authorization Refer this
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